Hydrocarbon-burner for furnaces.



No. 871,656.` PATENTED NOV. 19, 1907.

` B. L. WORTHEN.

HYDROCARBON BURNER FOR FURNACES.

APPLIoATIoN FILED Nov.1z.19o4.

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No. 871,656. I PATENTBD Nov. 19, 19p?.

B. L. WORTHBN.

HYDROCARBON BURNER POR PURNAGBS. APPLIOATION FILED Nov.12.19o4.

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- application of the burner to a furnace.

'l UNITED STATES PATENT OFFICE.

BURT L. WORTHEN, OF TUCSON, ARIZONA TERRITORY, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO TILE KEMP HYDRO-CARBON FURNACE COMPANY, -A

CORPORATION OF NEW YORK.

HYDROCARBON-BURNER FOR FURNACES.

Specification of Letters` Patent.

Patented Nov. 19, 1907'.

Application filed November l2, 1904. Serial No. 232.485.

To all whom it may concern:

Be it known that I, BURT L. I/VORTHEN, a citizen of the United States, and resident of Tucson, .in the county of Pima and Territory of Arizona, have made certain new and useful Improvements in Hydrocarbon-Burners for Furnaces, of which the following is a specification.

,This invention relates to hydrocarbon burners, and it consists substantially in the improvements hereinafter particularly described.

i In the reduction or smelting of metallic ores it is usual in some instances to employ a plurality of hydrocarbon burners within the wallsof the smeltingor reducing chamber of the furnace, for the purpose of projecting oxidizing desulfurizing flames into or against the massy of ore Within the chamber, but with such installations it frequently happens that the smelting or reducing operations are seriously interfered with or delayed, due to the collapse or burning out of one or more of the burners, which causes a material reduction of Working `pressure within the smelting chamber, withconsequent evil results.

One of the principal objects of the present invention is to overcome the above mentioned and numerous other disadvantages whichhave been found to exist with many forms `of. hydrocarbon burners hitherto devised for `ore reducing and other purposes,

all substantially as will hereinafter more fully appear,lwhen taken in connection with the accompanying drawings, in which Figure 1 is a side elevation showing the F ig. 2 1s a front elevation thereof, showing a pl'u rality` of vcasings as mounted within the wall of the furnace,` minus the burner-structures proper. Fig.` 3 is an enlarged longitudinal sectional view of the entire burner-structure,

showingtheentire organization of the parts or elements thereof more clearly, the position ofthe structure being horizontal instead of inclined as in Figs. 1 and 2.

Before proceeding with a more detailed de scription, it may be stated that inthe form of myimprovements herein shown, I preferably f employ a hydrocarbon burner possessing the general characteristics of the burner lillustratedand described in my co-pending` application, Serial No. 232,486 with certain suitable means, as a gate, for instance, for

entirely shutting off communication between the reducing-chamber and the atmosphere, whenever desired, so as to enable the burner proper to be readily removed, in the event of collapse or burning out of the same, without at all interfering with the working of the furnace with which the burner may be associated. Thus, in the use of a plurality of tlie burners, for introducing flames into the re ducing chamber of the furnace, should one or more of the burners be rendered useless from any cause, the same may be easily and quickly removed, and substitution therefor made without materially altering the working pressure -within the furnace, or otherwise interfering with the reducing operations of the latter.

Vhile I have herein represented my present improvements in a certain preferred embodiment, it will be understood, of course, that I am not limited to the precise details thereof in practice, since immaterial changes therein may be made, coming within the scope of my invention.

Reference being had to the accompanying drawings by the designating characters marked thereon, 1 represents a ortion of preferably a water-jacketed wall o" an ore reducing or other furnace, and 3 represents, as an entirety, a hydrocarbon burner comprising my present improvements, it being noted from Fig. 1 that the principal elements of each burner-structure proper, are disposed at an inward and downward inclination, with the inner extremities thereof located within the walls 4, of an ordinary twyer opening (not shown), in the furnace wall, such inclination being desirable in some instances, although, as shown in Fig. 3, the burnerstructure proper may be disposed horizontally, if desired. The burner-structure proper comprises substantially a cylindrical casing 5, open at its forward end, and closed at its rearward end, by means of a head 6, having a central opening 7, from the edge of which, at the inner side of the head 6, projects forwardly a cylinder 8, having the forward edge thereof turned inwardly a suitable extent to form a flange 9.. The interior of said casing 5,\constitutes a chamber 10, for air which is admitted thereto from a conducting pipe 1l, leading from an air main 12, suitably supported in position exteriorly of the wall of the furnace, as shown. The forward end of the 'casing 5, is flanged outwardly at 13, and, fitted thereto, and forming a practical extension thereof is the corresponding flange 13a at the rearward end of another casing 14, which is open at its forward end, as shown. Extending within the said casing 14 is the rearward portion of the walls 15, of a combustion chamber 16, said portion having an outer flange 16a engaging behind a corresponding inner flange 16k at the `s'aid rearward end of casing 14. The extreme inner end of said combustion chamber extends somewhat beyond the forward edge of a collar or flange 17, projecting from an inner head 18, having a central opening from the edge of which, .at the outer or forward side of said head, forwardly projects a collar or flange 19, attention being called to the fact that the external diameter of the said walls 15, of the combustion chamber, is less than the internal diameter of the walls of the said casing 14, thus forming an annular space or chamber 20, between the two said walls. Communicating with this space or chamber is the lower end or extremity of anI air conducting pipe 21, leading from the air main 12, it being observed that each of the air conducting pipes 11 and 21., is provided with a closing or regulating valve or gate 22, operated from without by means of a stem 23, see Figs. 1 and 2. Working between the said flanges 13 and 13a of the casings 5 and 14, in a suitable recess or opening therefor is a sliding gate or valve 24, preferably of a length to project outwardlygatljone end when closed, and also preferablyformed or provided at such end with a grip or handle 25, to be taken hold of by the operator for manipulating said gate or valve. The latter is of a width to completely close the interior of the casings 5 and 14, when pushed inwardly, a groove 27 being provided to receive the inner edge of said gate or valve when the latter is closed or pushed inwardly to its fullest extent.

Located within the upper part of the airchamber 10, is-a mixing-chamber 27 a, for oilvapor and air, a pipe 28 for-oil under pressure being supported in the head 6 of the casing 5, and a similar pipe 29 for air under pressure being also supported in said head, these pipes having communication with the interior of the mixing-chamber, the latter being constructed substantially as shown in my other pending application referred to, and an exact description of which is not deemed necessary for the purposes of the present invention.

Passing through a stuffing-box 30, fitted within the cylinder 8, is a burner-tube 31, to which the mixture from the mixing-chamber may be delivered in any suitable manner, the forward end-portion of said tube being supported within the collar 19, of the inner head 18, and the outer or rearward portion thereof being supported by an air-trunk 32, having communication with both the air-chamber 10 and burner-tube 31,A and supplying the latter with air fromv said chamber. rearwardly projecting portion of the burnertube is threaded at 32a, and has applied thereto suitable devices 33, for adjusting the tube either forwardly or rearwardly, a detailed description of said devices being unnecessary herein, since they form no part of the present invention.

From the foregoing it will be seen that in the employment of a plurality of my improved hydrocarbon burners, in connection with an ore reducing furnace, for instance, should one or more of the burners collapse or become burned out during the working of the furnace, the burner-structure may be readily removed and substituted by another or others, without at all interfering with the ore reducing operation, it being simply necessary to subsequently close the gate for each burner-structure thus removed, to shut off The communication between the furnace-cham'- ber and the atmosphere. While the gate or gates are thus in closed position, it is apparent that air will still be supplied to the interior of the furnace from the pipe 21, the valve in pipe 11 being closed meanwhile, and thus the pressure within the working chamber of the furnace will not be altered, nor will the ore reducing operation be interfered with or delayed in any way. As a means for securing each gate or valve 24 in either of its positions, l may form either of the anges 13, 13a with a threaded opening in which vworks a set-screw 50 (see Fig. 3) which may be adjusted to'bear against said gate, as is apparent.

In applying the burner-structure within the walls 4, securing bolts 35, having tightening nuts 35, are passed through correspondingly perforated lugs 36 and 37 of the flanges 13 and 13a, on the adjacent ends of the casings 5 and 14, respectively, said bolts being also passed through correspondingly perforated lugs 38 and 39, integral with flanges in said lugs, are inserted fastening pins 42a,

The walls 15 of the combustion see Fig. 1. chamber are rigidly secured in place by The head 6 is secured to the rear-- means of a bolt (one or more) 35, passing through corresponding or alining openings therefor in the heads 6 and 18 (see Fig. 3) the inner threaded portion thereof screwing in a threaded aperture inthe inner end of said walls l5.l From this it will be seen that to remove the burner-structure from the casings 5 and 14, it is simply necessary to take out the fastening pins 42, it being noted that bolt 350 is provided with suitable tightening and jam nuts 43 and 44. The heads 6 and 18, and the walls of the combustion-chamber, all being rigidly connected by the bolt 35C, it is apparent that on removing the said fastening pins 42a, the said heads and combustion-chamber, together with the burner, may all be taken out together or simultaneously, after'which the gate 24 is closed in the manner and for the purpose already stated. The combustion-chamber has communication with the chamber 10, by means of an air passage 24a, see Fig. 3, and, in some instances, I may employ a supporting lug 24h, for the walls of the combustion-chamber, located in the lower part of the annular space 20, said lug `assisting to maintain said walls centrally in place, and the walls riding thereon both on insertion and removal of the same.

L Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is-

` 1. Ahydrocarbon burner, comprising a casing,` forming an air-chamber and flanged at one end, another casing forming a separate air-chamber and flanged at its adjacent end, the two flanges being secured together, a combustion-chamber within the secondnamed` chamber, with the walls thereof less in external diameter than the internal diameter of the walls of said second-named chamber, the inner end of the combustion-chamber having a head formed with an opening, a .burner-tube fitted within this opening, means `for supplying air to each of the air chambers, having controlling devices, and means for'closing the interior of the said second-named` casing on removing the said tube and combustion-chamber.

2. A `hydrocarbon burner, comprising a casing, forming an air-chamber, and flanged at one end, another easing forming a separate air-chamber and flanged at its adjacent end, the two flanges being secured together, a combustion-chamber within the secondnamed chamber, with the walls thereof less in external diameter than the internal diameter of the walls of said second-named chamber, vthe inner end of the coinbustion-chamlber having a head provided with an openl`mg, `a burner-tube within this opening,

means for su l in air to each of the air- PP Y g chambers, having controlling devices, and a .combustion-chamber, an air main, and air supply pipes leading therefrom to each of the air-chambers, said pipes each having a controlling valve, and means for closing the interior of the second-named casing on removing said burner-tube and combustionchamber.

4. A hydrocarbon burner, comprising a casing, forming an air-chamber, a second casing united thereto, forming a second airehamber, a coinbustion-chamber within the said second air-chamber, with the walls thereof less in external diameter than the internal diameter of the walls of said secondnamed air-chamber, the inner end of said combustion-chamber having la head formed with an opening, a burner-tube fitted within this opening and communicating with the combustion-chamber, an air main, and air supply pipes leading therefrom to each of the air-chambers, said pipes each having a controlling valve, and a sliding gate for closing the interior of the second-named casing on removing said burner-tube and combustion-chamber.

5. A hydrocarbon burner, comprising a casing provided at one en'd with a removable head, and having a flange at its other end,

another casing having a flange at its adjacent end, said flanges being secured together, and said second-named c asing also having an inner flange, a coinbustion-chamber having the walls thereof less in external diameter than the internal diameter of the walls of the second-named chamber, said inner flange closing the space between the two said walls, a burner tube leading to the combustionchainber, means for supplying each of the casings with air, means for securing the walls of the combustion-cliamber to said reinovable head, and a device for closing the interior of the second-named casing on removing the combustionchamber and burner-tube- BURT L. VORTHEN. l/Vitnesses:

C. A. BLIss, T. F. SEAMAN.

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